| // SPDX-License-Identifier: GPL-2.0-only |
| /* |
| * Copyright (c) 2020, The Linux Foundation. All rights reserved. |
| */ |
| |
| #include <linux/clk-provider.h> |
| #include <linux/err.h> |
| #include <linux/module.h> |
| #include <linux/of_device.h> |
| #include <linux/pm_clock.h> |
| #include <linux/pm_runtime.h> |
| #include <linux/of.h> |
| #include <linux/regmap.h> |
| |
| #include <dt-bindings/clock/qcom,lpasscorecc-sc7180.h> |
| |
| #include "clk-alpha-pll.h" |
| #include "clk-branch.h" |
| #include "clk-rcg.h" |
| #include "clk-regmap.h" |
| #include "common.h" |
| #include "gdsc.h" |
| |
| enum { |
| P_BI_TCXO, |
| P_LPASS_LPAAUDIO_DIG_PLL_OUT_ODD, |
| P_SLEEP_CLK, |
| }; |
| |
| static struct pll_vco fabia_vco[] = { |
| { 249600000, 2000000000, 0 }, |
| }; |
| |
| static const struct alpha_pll_config lpass_lpaaudio_dig_pll_config = { |
| .l = 0x20, |
| .alpha = 0x0, |
| .config_ctl_val = 0x20485699, |
| .config_ctl_hi_val = 0x00002067, |
| .test_ctl_val = 0x40000000, |
| .test_ctl_hi_val = 0x00000000, |
| .user_ctl_val = 0x00005105, |
| .user_ctl_hi_val = 0x00004805, |
| }; |
| |
| static const u8 clk_alpha_pll_regs_offset[][PLL_OFF_MAX_REGS] = { |
| [CLK_ALPHA_PLL_TYPE_FABIA] = { |
| [PLL_OFF_L_VAL] = 0x04, |
| [PLL_OFF_CAL_L_VAL] = 0x8, |
| [PLL_OFF_USER_CTL] = 0x0c, |
| [PLL_OFF_USER_CTL_U] = 0x10, |
| [PLL_OFF_USER_CTL_U1] = 0x14, |
| [PLL_OFF_CONFIG_CTL] = 0x18, |
| [PLL_OFF_CONFIG_CTL_U] = 0x1C, |
| [PLL_OFF_CONFIG_CTL_U1] = 0x20, |
| [PLL_OFF_TEST_CTL] = 0x24, |
| [PLL_OFF_TEST_CTL_U] = 0x28, |
| [PLL_OFF_STATUS] = 0x30, |
| [PLL_OFF_OPMODE] = 0x38, |
| [PLL_OFF_FRAC] = 0x40, |
| }, |
| }; |
| |
| static struct clk_alpha_pll lpass_lpaaudio_dig_pll = { |
| .offset = 0x1000, |
| .vco_table = fabia_vco, |
| .num_vco = ARRAY_SIZE(fabia_vco), |
| .regs = clk_alpha_pll_regs_offset[CLK_ALPHA_PLL_TYPE_FABIA], |
| .clkr = { |
| .hw.init = &(struct clk_init_data){ |
| .name = "lpass_lpaaudio_dig_pll", |
| .parent_data = &(const struct clk_parent_data){ |
| .fw_name = "bi_tcxo", |
| }, |
| .num_parents = 1, |
| .ops = &clk_alpha_pll_fabia_ops, |
| }, |
| }, |
| }; |
| |
| static const struct clk_div_table |
| post_div_table_lpass_lpaaudio_dig_pll_out_odd[] = { |
| { 0x5, 5 }, |
| { } |
| }; |
| |
| static struct clk_alpha_pll_postdiv lpass_lpaaudio_dig_pll_out_odd = { |
| .offset = 0x1000, |
| .post_div_shift = 12, |
| .post_div_table = post_div_table_lpass_lpaaudio_dig_pll_out_odd, |
| .num_post_div = |
| ARRAY_SIZE(post_div_table_lpass_lpaaudio_dig_pll_out_odd), |
| .width = 4, |
| .regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_FABIA], |
| .clkr.hw.init = &(struct clk_init_data){ |
| .name = "lpass_lpaaudio_dig_pll_out_odd", |
| .parent_data = &(const struct clk_parent_data){ |
| .hw = &lpass_lpaaudio_dig_pll.clkr.hw, |
| }, |
| .num_parents = 1, |
| .flags = CLK_SET_RATE_PARENT, |
| .ops = &clk_alpha_pll_postdiv_fabia_ops, |
| }, |
| }; |
| |
| static const struct parent_map lpass_core_cc_parent_map_0[] = { |
| { P_BI_TCXO, 0 }, |
| { P_LPASS_LPAAUDIO_DIG_PLL_OUT_ODD, 5 }, |
| }; |
| |
| static const struct clk_parent_data lpass_core_cc_parent_data_0[] = { |
| { .fw_name = "bi_tcxo" }, |
| { .hw = &lpass_lpaaudio_dig_pll_out_odd.clkr.hw }, |
| }; |
| |
| static const struct parent_map lpass_core_cc_parent_map_2[] = { |
| { P_BI_TCXO, 0 }, |
| }; |
| |
| static struct clk_rcg2 core_clk_src = { |
| .cmd_rcgr = 0x1d000, |
| .mnd_width = 8, |
| .hid_width = 5, |
| .parent_map = lpass_core_cc_parent_map_2, |
| .clkr.hw.init = &(struct clk_init_data){ |
| .name = "core_clk_src", |
| .parent_data = &(const struct clk_parent_data){ |
| .fw_name = "bi_tcxo", |
| }, |
| .num_parents = 1, |
| .ops = &clk_rcg2_ops, |
| }, |
| }; |
| |
| static const struct freq_tbl ftbl_ext_mclk0_clk_src[] = { |
| F(9600000, P_BI_TCXO, 2, 0, 0), |
| F(19200000, P_BI_TCXO, 1, 0, 0), |
| { } |
| }; |
| |
| static const struct freq_tbl ftbl_ext_lpaif_clk_src[] = { |
| F(256000, P_LPASS_LPAAUDIO_DIG_PLL_OUT_ODD, 15, 1, 32), |
| F(512000, P_LPASS_LPAAUDIO_DIG_PLL_OUT_ODD, 15, 1, 16), |
| F(768000, P_LPASS_LPAAUDIO_DIG_PLL_OUT_ODD, 10, 1, 16), |
| F(1024000, P_LPASS_LPAAUDIO_DIG_PLL_OUT_ODD, 15, 1, 8), |
| F(1536000, P_LPASS_LPAAUDIO_DIG_PLL_OUT_ODD, 10, 1, 8), |
| F(2048000, P_LPASS_LPAAUDIO_DIG_PLL_OUT_ODD, 15, 1, 4), |
| F(3072000, P_LPASS_LPAAUDIO_DIG_PLL_OUT_ODD, 10, 1, 4), |
| F(4096000, P_LPASS_LPAAUDIO_DIG_PLL_OUT_ODD, 15, 1, 2), |
| F(6144000, P_LPASS_LPAAUDIO_DIG_PLL_OUT_ODD, 10, 1, 2), |
| F(8192000, P_LPASS_LPAAUDIO_DIG_PLL_OUT_ODD, 15, 0, 0), |
| F(9600000, P_BI_TCXO, 2, 0, 0), |
| F(12288000, P_LPASS_LPAAUDIO_DIG_PLL_OUT_ODD, 10, 0, 0), |
| F(19200000, P_BI_TCXO, 1, 0, 0), |
| F(24576000, P_LPASS_LPAAUDIO_DIG_PLL_OUT_ODD, 5, 0, 0), |
| { } |
| }; |
| |
| static struct clk_rcg2 ext_mclk0_clk_src = { |
| .cmd_rcgr = 0x20000, |
| .mnd_width = 8, |
| .hid_width = 5, |
| .parent_map = lpass_core_cc_parent_map_0, |
| .freq_tbl = ftbl_ext_mclk0_clk_src, |
| .clkr.hw.init = &(struct clk_init_data){ |
| .name = "ext_mclk0_clk_src", |
| .parent_data = lpass_core_cc_parent_data_0, |
| .num_parents = 2, |
| .flags = CLK_SET_RATE_PARENT, |
| .ops = &clk_rcg2_ops, |
| }, |
| }; |
| |
| static struct clk_rcg2 lpaif_pri_clk_src = { |
| .cmd_rcgr = 0x10000, |
| .mnd_width = 16, |
| .hid_width = 5, |
| .parent_map = lpass_core_cc_parent_map_0, |
| .freq_tbl = ftbl_ext_lpaif_clk_src, |
| .clkr.hw.init = &(struct clk_init_data){ |
| .name = "lpaif_pri_clk_src", |
| .parent_data = lpass_core_cc_parent_data_0, |
| .num_parents = 2, |
| .flags = CLK_SET_RATE_PARENT, |
| .ops = &clk_rcg2_ops, |
| }, |
| }; |
| |
| static struct clk_rcg2 lpaif_sec_clk_src = { |
| .cmd_rcgr = 0x11000, |
| .mnd_width = 16, |
| .hid_width = 5, |
| .parent_map = lpass_core_cc_parent_map_0, |
| .freq_tbl = ftbl_ext_lpaif_clk_src, |
| .clkr.hw.init = &(struct clk_init_data){ |
| .name = "lpaif_sec_clk_src", |
| .parent_data = lpass_core_cc_parent_data_0, |
| .num_parents = 2, |
| .flags = CLK_SET_RATE_PARENT, |
| .ops = &clk_rcg2_ops, |
| }, |
| }; |
| |
| static struct clk_branch lpass_audio_core_ext_mclk0_clk = { |
| .halt_reg = 0x20014, |
| .halt_check = BRANCH_HALT, |
| .hwcg_reg = 0x20014, |
| .hwcg_bit = 1, |
| .clkr = { |
| .enable_reg = 0x20014, |
| .enable_mask = BIT(0), |
| .hw.init = &(struct clk_init_data){ |
| .name = "lpass_audio_core_ext_mclk0_clk", |
| .parent_data = &(const struct clk_parent_data){ |
| .hw = &ext_mclk0_clk_src.clkr.hw, |
| }, |
| .num_parents = 1, |
| .flags = CLK_SET_RATE_PARENT, |
| .ops = &clk_branch2_ops, |
| }, |
| }, |
| }; |
| |
| static struct clk_branch lpass_audio_core_lpaif_pri_ibit_clk = { |
| .halt_reg = 0x10018, |
| .halt_check = BRANCH_HALT, |
| .hwcg_reg = 0x10018, |
| .hwcg_bit = 1, |
| .clkr = { |
| .enable_reg = 0x10018, |
| .enable_mask = BIT(0), |
| .hw.init = &(struct clk_init_data){ |
| .name = "lpass_audio_core_lpaif_pri_ibit_clk", |
| .parent_data = &(const struct clk_parent_data){ |
| .hw = &lpaif_pri_clk_src.clkr.hw, |
| }, |
| .num_parents = 1, |
| .flags = CLK_SET_RATE_PARENT, |
| .ops = &clk_branch2_ops, |
| }, |
| }, |
| }; |
| |
| static struct clk_branch lpass_audio_core_lpaif_sec_ibit_clk = { |
| .halt_reg = 0x11018, |
| .halt_check = BRANCH_HALT, |
| .hwcg_reg = 0x11018, |
| .hwcg_bit = 1, |
| .clkr = { |
| .enable_reg = 0x11018, |
| .enable_mask = BIT(0), |
| .hw.init = &(struct clk_init_data){ |
| .name = "lpass_audio_core_lpaif_sec_ibit_clk", |
| .parent_data = &(const struct clk_parent_data){ |
| .hw = &lpaif_sec_clk_src.clkr.hw, |
| }, |
| .num_parents = 1, |
| .flags = CLK_SET_RATE_PARENT, |
| .ops = &clk_branch2_ops, |
| }, |
| }, |
| }; |
| |
| static struct clk_branch lpass_audio_core_sysnoc_mport_core_clk = { |
| .halt_reg = 0x23000, |
| .halt_check = BRANCH_HALT, |
| .hwcg_reg = 0x23000, |
| .hwcg_bit = 1, |
| .clkr = { |
| .enable_reg = 0x23000, |
| .enable_mask = BIT(0), |
| .hw.init = &(struct clk_init_data){ |
| .name = "lpass_audio_core_sysnoc_mport_core_clk", |
| .parent_data = &(const struct clk_parent_data){ |
| .hw = &core_clk_src.clkr.hw, |
| }, |
| .num_parents = 1, |
| .flags = CLK_SET_RATE_PARENT, |
| .ops = &clk_branch2_ops, |
| }, |
| }, |
| }; |
| |
| static struct clk_regmap *lpass_core_cc_sc7180_clocks[] = { |
| [EXT_MCLK0_CLK_SRC] = &ext_mclk0_clk_src.clkr, |
| [LPAIF_PRI_CLK_SRC] = &lpaif_pri_clk_src.clkr, |
| [LPAIF_SEC_CLK_SRC] = &lpaif_sec_clk_src.clkr, |
| [CORE_CLK_SRC] = &core_clk_src.clkr, |
| [LPASS_AUDIO_CORE_EXT_MCLK0_CLK] = &lpass_audio_core_ext_mclk0_clk.clkr, |
| [LPASS_AUDIO_CORE_LPAIF_PRI_IBIT_CLK] = |
| &lpass_audio_core_lpaif_pri_ibit_clk.clkr, |
| [LPASS_AUDIO_CORE_LPAIF_SEC_IBIT_CLK] = |
| &lpass_audio_core_lpaif_sec_ibit_clk.clkr, |
| [LPASS_AUDIO_CORE_SYSNOC_MPORT_CORE_CLK] = |
| &lpass_audio_core_sysnoc_mport_core_clk.clkr, |
| [LPASS_LPAAUDIO_DIG_PLL] = &lpass_lpaaudio_dig_pll.clkr, |
| [LPASS_LPAAUDIO_DIG_PLL_OUT_ODD] = &lpass_lpaaudio_dig_pll_out_odd.clkr, |
| }; |
| |
| static struct gdsc lpass_pdc_hm_gdsc = { |
| .gdscr = 0x3090, |
| .pd = { |
| .name = "lpass_pdc_hm_gdsc", |
| }, |
| .pwrsts = PWRSTS_OFF_ON, |
| .flags = VOTABLE, |
| }; |
| |
| static struct gdsc lpass_audio_hm_gdsc = { |
| .gdscr = 0x9090, |
| .pd = { |
| .name = "lpass_audio_hm_gdsc", |
| }, |
| .pwrsts = PWRSTS_OFF_ON, |
| }; |
| |
| static struct gdsc lpass_core_hm_gdsc = { |
| .gdscr = 0x0, |
| .pd = { |
| .name = "lpass_core_hm_gdsc", |
| }, |
| .pwrsts = PWRSTS_OFF_ON, |
| .flags = RETAIN_FF_ENABLE, |
| }; |
| |
| static struct gdsc *lpass_core_hm_sc7180_gdscs[] = { |
| [LPASS_CORE_HM_GDSCR] = &lpass_core_hm_gdsc, |
| }; |
| |
| static struct gdsc *lpass_audio_hm_sc7180_gdscs[] = { |
| [LPASS_PDC_HM_GDSCR] = &lpass_pdc_hm_gdsc, |
| [LPASS_AUDIO_HM_GDSCR] = &lpass_audio_hm_gdsc, |
| }; |
| |
| static struct regmap_config lpass_core_cc_sc7180_regmap_config = { |
| .reg_bits = 32, |
| .reg_stride = 4, |
| .val_bits = 32, |
| .fast_io = true, |
| }; |
| |
| static const struct qcom_cc_desc lpass_core_hm_sc7180_desc = { |
| .config = &lpass_core_cc_sc7180_regmap_config, |
| .gdscs = lpass_core_hm_sc7180_gdscs, |
| .num_gdscs = ARRAY_SIZE(lpass_core_hm_sc7180_gdscs), |
| }; |
| |
| static const struct qcom_cc_desc lpass_core_cc_sc7180_desc = { |
| .config = &lpass_core_cc_sc7180_regmap_config, |
| .clks = lpass_core_cc_sc7180_clocks, |
| .num_clks = ARRAY_SIZE(lpass_core_cc_sc7180_clocks), |
| }; |
| |
| static const struct qcom_cc_desc lpass_audio_hm_sc7180_desc = { |
| .config = &lpass_core_cc_sc7180_regmap_config, |
| .gdscs = lpass_audio_hm_sc7180_gdscs, |
| .num_gdscs = ARRAY_SIZE(lpass_audio_hm_sc7180_gdscs), |
| }; |
| |
| static int lpass_core_cc_sc7180_probe(struct platform_device *pdev) |
| { |
| const struct qcom_cc_desc *desc; |
| struct regmap *regmap; |
| int ret; |
| |
| lpass_core_cc_sc7180_regmap_config.name = "lpass_audio_cc"; |
| desc = &lpass_audio_hm_sc7180_desc; |
| ret = qcom_cc_probe_by_index(pdev, 1, desc); |
| if (ret) |
| return ret; |
| |
| lpass_core_cc_sc7180_regmap_config.name = "lpass_core_cc"; |
| regmap = qcom_cc_map(pdev, &lpass_core_cc_sc7180_desc); |
| if (IS_ERR(regmap)) |
| return PTR_ERR(regmap); |
| |
| /* |
| * Keep the CLK always-ON |
| * LPASS_AUDIO_CORE_SYSNOC_SWAY_CORE_CLK |
| */ |
| regmap_update_bits(regmap, 0x24000, BIT(0), BIT(0)); |
| |
| /* PLL settings */ |
| regmap_write(regmap, 0x1008, 0x20); |
| regmap_update_bits(regmap, 0x1014, BIT(0), BIT(0)); |
| |
| clk_fabia_pll_configure(&lpass_lpaaudio_dig_pll, regmap, |
| &lpass_lpaaudio_dig_pll_config); |
| |
| return qcom_cc_really_probe(pdev, &lpass_core_cc_sc7180_desc, regmap); |
| } |
| |
| static int lpass_hm_core_probe(struct platform_device *pdev) |
| { |
| const struct qcom_cc_desc *desc; |
| |
| lpass_core_cc_sc7180_regmap_config.name = "lpass_hm_core"; |
| desc = &lpass_core_hm_sc7180_desc; |
| |
| return qcom_cc_probe_by_index(pdev, 0, desc); |
| } |
| |
| static const struct of_device_id lpass_core_cc_sc7180_match_table[] = { |
| { |
| .compatible = "qcom,sc7180-lpasshm", |
| .data = lpass_hm_core_probe, |
| }, |
| { |
| .compatible = "qcom,sc7180-lpasscorecc", |
| .data = lpass_core_cc_sc7180_probe, |
| }, |
| { } |
| }; |
| MODULE_DEVICE_TABLE(of, lpass_core_cc_sc7180_match_table); |
| |
| static int lpass_core_sc7180_probe(struct platform_device *pdev) |
| { |
| int (*clk_probe)(struct platform_device *p); |
| int ret; |
| |
| pm_runtime_enable(&pdev->dev); |
| ret = pm_clk_create(&pdev->dev); |
| if (ret) |
| return ret; |
| |
| ret = pm_clk_add(&pdev->dev, "iface"); |
| if (ret < 0) { |
| dev_err(&pdev->dev, "failed to acquire iface clock\n"); |
| goto disable_pm_runtime; |
| } |
| |
| clk_probe = of_device_get_match_data(&pdev->dev); |
| if (!clk_probe) |
| return -EINVAL; |
| |
| ret = clk_probe(pdev); |
| if (ret) |
| goto destroy_pm_clk; |
| |
| return 0; |
| |
| destroy_pm_clk: |
| pm_clk_destroy(&pdev->dev); |
| |
| disable_pm_runtime: |
| pm_runtime_disable(&pdev->dev); |
| |
| return ret; |
| } |
| |
| static const struct dev_pm_ops lpass_core_cc_pm_ops = { |
| SET_RUNTIME_PM_OPS(pm_clk_suspend, pm_clk_resume, NULL) |
| }; |
| |
| static struct platform_driver lpass_core_cc_sc7180_driver = { |
| .probe = lpass_core_sc7180_probe, |
| .driver = { |
| .name = "lpass_core_cc-sc7180", |
| .of_match_table = lpass_core_cc_sc7180_match_table, |
| .pm = &lpass_core_cc_pm_ops, |
| }, |
| }; |
| |
| static int __init lpass_core_cc_sc7180_init(void) |
| { |
| return platform_driver_register(&lpass_core_cc_sc7180_driver); |
| } |
| subsys_initcall(lpass_core_cc_sc7180_init); |
| |
| static void __exit lpass_core_cc_sc7180_exit(void) |
| { |
| platform_driver_unregister(&lpass_core_cc_sc7180_driver); |
| } |
| module_exit(lpass_core_cc_sc7180_exit); |
| |
| MODULE_DESCRIPTION("QTI LPASS_CORE_CC SC7180 Driver"); |
| MODULE_LICENSE("GPL v2"); |
